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Multiple UARTs?

jhane

Hello,

 

  Is there more than one UART available on the ultra96?  I would like to have the console for the a53 and an r5.   I saw that the zcu102 board has this but I only see the jtag and uart1 when I connect the ultra96 board.

 

thanks,

jeff

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  • Hi Jeff,

     

    There are 2 Uarts - UART0/UART1 available from the PS. Dependent on how your hardware platform is configured you may not have access to both. For instance if your using the provided BSP, in that hardware platform UART0 is connected to the bluetooth while UART1 goes out through J6.

     

    -Josh

  • in reply to jafoste4

    Josh,

     

    I see now how it is connected to the bluetooth and why you might want it connected a PS uart verses adding one in the PL.  Since I don't need bluetooth right now I've figured out how to remap the UART to some pins on the LS connector.  So with a couple device tree changes and setting the RPU to UART0 I was able to use a standalone USB-UART cable to get a second serial port.

     

    thanks, jeff

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  • in reply to jafoste4

    Josh,

     

    I see now how it is connected to the bluetooth and why you might want it connected a PS uart verses adding one in the PL.  Since I don't need bluetooth right now I've figured out how to remap the UART to some pins on the LS connector.  So with a couple device tree changes and setting the RPU to UART0 I was able to use a standalone USB-UART cable to get a second serial port.

     

    thanks, jeff

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